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Film boiling

The Farahat sodium natural convection film boiling experiment revisited

The Farahat sodium natural convection film boiling experiment revisited

... convection film boiling experiment of Farahat has provided evidence of the occurrence of these two film boiling regimes (they were not mentioned by Farahat, see Figure ...the film ...

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Transition between nucleate and film boiling in rapid transient heating

Transition between nucleate and film boiling in rapid transient heating

... Pulse boiling experiments on a thin wire heater were con- ...transient boiling were ...to film boiling occurs in the way of an explosive vapor wave initiated at one large ...nucleate ...

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Synthesis of hexacelsian barium aluminosilicate by film boiling chemical vapour process

Synthesis of hexacelsian barium aluminosilicate by film boiling chemical vapour process

... perform film-boiling chemical vapour infiltration of a mixture of liquid alkoxides which contains all necessary species to synthesize BAS in a woven preform made of Nextel TM 312 alumina-boria-silica ...

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Transition between nucleate and film boiling in rapid transient heating

Transition between nucleate and film boiling in rapid transient heating

... nucleate boiling followed by partial film boiling ( ...nucleate boiling regime shrinks to the appearance of just some bubbles before film boiling spreads over the entire ...in ...

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Method for the Design of a Contact Dryer-Application to Sludge Treatment in Thin Film Boiling

Method for the Design of a Contact Dryer-Application to Sludge Treatment in Thin Film Boiling

... the boiling point temperature of the sludge, is assumed to be equal to the boiling point of water, ...hard boiling (at the beginning of the contact), but they rise by several orders of magnitude ...

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Transient flow boiling in a semi-annular duct: From the Onset of Nucleate Boiling to the Fully Developed Nucleate Boiling

Transient flow boiling in a semi-annular duct: From the Onset of Nucleate Boiling to the Fully Developed Nucleate Boiling

... Transient boiling has been studied since the 1950s and most of these investigations were performed in pool boiling condition using ribbon [1] , wire [2–4] or plate [5–7] ...pool boiling in ...

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Experimental study of transient boiling

Experimental study of transient boiling

... Figure 10: Wall heat flux as a function of mean wall temperature for a large set of wall temperature increase rates. An example is shown in figure 11 where the temperature and power time-evolutions are plotted for the ...

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Experimental study of transient boiling

Experimental study of transient boiling

... Figure 10: Wall heat flux as a function of mean wall temperature for a large set of wall temperature increase rates. An example is shown in figure 11 where the temperature and power time-evolutions are plotted for the ...

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Transient flow boiling in a semi-annular duct: From the Onset of Nucleate Boiling to the Fully Developed Nucleate Boiling

Transient flow boiling in a semi-annular duct: From the Onset of Nucleate Boiling to the Fully Developed Nucleate Boiling

... Transient boiling has been studied since the 1950s and most of these investigations were performed in pool boiling condition using ribbon [1] , wire [2–4] or plate [5–7] ...pool boiling in ...

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Experimental study of steady and transient subcooled flow boiling

Experimental study of steady and transient subcooled flow boiling

... sient boiling up to critical heat flux on immersed wires for expo- nentially increasing power transients, identifying specific sponta- neous heterogeneous nucleation phenomena for very rapid heat- ing, which were ...

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Modeling and Simulation of Nucleate Boiling

Modeling and Simulation of Nucleate Boiling

... pool boiling type ...of boiling crisis is a critical safety issue for the nuclear industry: when the transition occurs from nucleate boiling to film boiling in the vicinity of heating ...

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Boiling crisis and non-equilibrium drying transition

Boiling crisis and non-equilibrium drying transition

... vapor bubbles suddenly form a film which covers the heating surface and insulates the latter from the bulk of the liquid. The temperature of the heating surface grows so rapidly that the heater can fuse unless its ...

8

Numerical simulation of boiling for industrial quenching processes

Numerical simulation of boiling for industrial quenching processes

... dimensional film boiling-Meso Scale This computation is performed in a three-dimensional hexahedral domain with a heat source (Figure ...film boiling is plotted in Figure ...nucleate boiling ...

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BOILING ENHANCEMENT: RESPONSE TO PROFESSOR A. E. BERGLES

BOILING ENHANCEMENT: RESPONSE TO PROFESSOR A. E. BERGLES

... pool boiling, as referred to in Section ...convective boiling, where mass transfer is much more rapid, there are reasons to expect that the multicomponent effect would be much ...

9

Dheepan, un film postcolonial

Dheepan, un film postcolonial

... 13 Le film joue sur le fait que les personnages échappent à une guerre dans leur pays pour être de nouveau plongés localement dans un autre conflit. De ce dernier toutefois, ils sont simplement spectateurs : ils ...

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The correlation of nucleate boiling burn-out data

The correlation of nucleate boiling burn-out data

... In addition, no general correlation scheme exists, so that it is impossible for .a designer to take burnout data for water, for instance, and use it to calculate[r] ...

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Burnout in forced convection nucleate boiling of water

Burnout in forced convection nucleate boiling of water

... At hibg heat flux, in the nei*hborhood of burnout, the test section is normally almost isothermal, so that, while the magnitude of the test section resistance may [r] ...

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Burnout in forced convection nucleate boiling of water

Burnout in forced convection nucleate boiling of water

... the exit section must become small at high quality, Since the boiling process depends on a liquid covered surface, it is reasonable to expect that the average depth of the liqu[r] ...

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A boiling water reactor simulator for stability analysis

A boiling water reactor simulator for stability analysis

... Because the actual nuclear data during the Peach Bottom-2 stability tests are not available, and because the stability analysis results are sensitive to the time ste[r] ...

274

Numerical simulation of boiling during the quenching process

Numerical simulation of boiling during the quenching process

... 4 Model validation . 4.1 Bubble growth and detachment 4.1.1 Experimental study In the present study, we report a detailed study of a single bubble growth, shape and departure on a heated surface. Nucleate boiling ...

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